Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

Stanford Online
Skills you'll gain: Physics, European History, Verification And Validation, Scientific Methods, electromagnetics, Research, Experimentation, Mechanics, Global Positioning Systems
★ 4.9 (3.2K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Electric Power Systems, Energy and Utilities, Electrical Power, Network Protocols, Electrical Substation, Internet Of Things, Cloud Computing, System Monitoring, Cloud Management, Network Infrastructure, Interoperability, Operations Support Systems, Wireless Networks, Electrical Engineering, Cybersecurity, Power Electronics, Electrical Equipment, TCP/IP, Information Technology, Electronics Engineering
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Apache Maven, Software Development Life Cycle, Unified Modeling Language, Object Oriented Programming (OOP), Build Tools, CI/CD, Object Oriented Design, Cloud-Native Computing, Software Development Methodologies, Jenkins, Continuous Integration, Agile Methodology, Software Development Tools, Version Control, Software Design Patterns, Software Development, Test Driven Development (TDD), Software Versioning, Programming Principles, Software Design
★ 4.5 (196) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Linux Commands, Bash (Scripting Language), Shell Script, File Management, Unix Shell, Linux, File Systems, Unix Commands, Linux Servers, Scripting, Command-Line Interface, Linux Administration, Scripting Languages, Unix, File I/O, grep, Operating Systems, Package and Software Management, Network Protocols, Data Import/Export
★ 4.6 (1.8K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computer Vision, Convolutional Neural Networks, Transfer Learning, Model Evaluation, Machine Learning Methods, Model Training, Fine-tuning, Classification Algorithms, Machine Learning Algorithms, Deep Learning, Model Optimization, Network Architecture
★ 4.3 (1.4K) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Apple iOS, iOS Development, Transaction Processing, Mobile Development, Knowledge of Apple Software, User Interface (UI), User Interface and User Experience (UI/UX) Design, Payment Systems, User Experience
★ 4.7 (88) · Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Responsible AI, Data Ethics, Artificial Intelligence, Predictive Modeling, Artificial Intelligence and Machine Learning (AI/ML), Applied Machine Learning, AI literacy, Large Language Modeling, Natural Language Processing, Model Training, Machine Learning, Model Evaluation, Decision Intelligence, Hugging Face, Machine Learning Methods, Generative AI, LLM Application, Bayesian Network, Human Centered Design, Python Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Information Systems, Management Information Systems, Business Systems, Information Technology, Information Systems Security, Business Technologies, Information Management, Decision Support Systems, Open Source Technology, Business Systems Analysis, Technology Strategies, Systems Analysis, Emerging Technologies, Software Systems, Computing Platforms, Mobile Security, Web Applications, Operational Efficiency, Computer Hardware, Strategic Decision-Making
Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: R (Software), R Programming, Statistical Programming, Ggplot2, Plot (Graphics), Data Manipulation, Simulations, Statistical Software, Statistical Visualization, grep, Data Processing, Graphing, Programming Principles, Data Import/Export, Exploratory Data Analysis, Data Structures, Software Installation, Package and Software Management
★ 4.7 (8.6K) · Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Object Oriented Programming (OOP), C (Programming Language), Python Programming, Data Import/Export, Memory Management, File I/O, Computational Logic, Network Protocols, Package and Software Management
★ 4.6 (2.5K) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ajax, Javascript, Data Structures, Debugging, JSON, Web Development, Web Applications, Cascading Style Sheets (CSS), Computer Programming, HTML and CSS, Event-Driven Programming, Software Development, Git (Version Control System), Hypertext Markup Language (HTML), Application Programming Interface (API)
★ 4.5 (181) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Responsible AI, ChatGPT, Prompt Patterns, AI literacy, Prompt Engineering Tools, Large Language Modeling, AI powered creativity, Data Ethics, AI Workflows, OpenAI, LLM Application, Generative AI, Artificial Intelligence, Data Quality, Decision Intelligence, Model Evaluation, AI Personalization, Model Training, AI Security
Intermediate · Course · 3 - 6 Months